Black Blood (manga)

Ethan, a battle-weary cyborg soldier, retreats to a tranquil planet in search of peace. There, he meets Mikhail, a gentle botanist whose warm smile and delicate touch seem almost fragile. Ethan finds himself inexplicably drawn to Mikhail, experiencing a restless unease whenever they’re together.

He longs to touch, to cherish - feelings that are undeniably human. Bewildered by the feelings stirring within him, Ethan begins to question if he truly has a heart after all.